The bolts are already 3/8" ARP bolts, so how much would really be gained by going to ARP 7/16" ???? Don't they have the same tensile strength (like 70,000# ??) I only plan about 550hp NA and 5200-5400 rpm......

Like I said they will be fine for most apps.,,it will be perfect for you are the bolts new or have they been streched ,,use new

blown formula,

You'll be fine with the 3/8" rod bolts. There is more material surounding the 3/8" rod bolt rod/cap which gives it more stength you just need to do like bobby and blown 1500 say; have them checked out to see if they need reconditioning, magnafluxed and buy/install NEW ARP 3/8" "wave-lock" rod bolts. ARP makes two different kinds of "Wave-Lock" rod bolts. I think one set is a little stronger than the other, but both are probably stronger for the application than what you'll really need them for. I would have loved to have had those rods if I was rebuilding a hi-perf 454 or 502!

Thanks for the info guys.... I really appreciate it. Always good help here!!

I am very interested in your rods. Please pm me again, I lost the first.

All BBC rods are forged. No such beast as cast rods.

McColliston,

That's not what I hear from my engine guy..... If that is true, then I can start wholesaleing forged rods!!

My understanding is the 3/8 dimple rods are the 427 L-88 version and the 7/16 dimple are the LS-6 LS-7 style rods, from years ago. I have a brand new polished beam set of the older 7/16 style rods with upgraded Wave-Loc style bolts. When comparing 7/16 to 7/16 rods a 502/502 versus the older LS-7 style rods the older rods are much beefier. I second others in the thread that either are good but use good, new bolts and you won't regret not spending the $70 bucks for them.

Here are pictures of the rods

The polished Rod Beam